"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 07:44:04.370428
"""

```python
from typing import List, Optional


class ReasoningEngine:
    """
    A simple reasoning engine to solve problems based on limited reasoning sophistication.
    This class can be extended for more complex problem-solving scenarios.

    Args:
        knowledge_base: A list of rules or conditions used in the reasoning process. Each rule is a string.
                        Example: ["if x > 10 then y = 20", "if x <= 10 and y == True then z = False"]
        initial_state: Initial state variables as a dictionary where keys are variable names and values their states.
                       Example: {"x": 5, "y": None}

    Methods:
        update_state: Updates the current state based on rules in knowledge_base.
    """

    def __init__(self, knowledge_base: List[str], initial_state: dict):
        self.knowledge_base = knowledge_base
        self.state = initial_state

    def _evaluate_rule(self, rule: str) -> Optional[bool]:
        """
        Evaluates a single rule and returns the result.
        """
        try:
            exec(f"from __main__ import {rule.split(' then ')[0].strip()}")
            condition, action = rule.strip().replace("then", "").replace(" ", "").split("then")
            if eval(condition):
                return True
        except Exception as e:
            print(f"Error evaluating rule: {e}")
        return False

    def update_state(self) -> None:
        """
        Updates the current state based on rules in knowledge_base.
        """
        for rule in self.knowledge_base:
            result = self._evaluate_rule(rule)
            if result is not None and result:
                action_part, variable_name = rule.strip().split("then ")[1].strip().rsplit("=", 1)
                exec(action_part.replace(" ", ""))
                self.state[variable_name] = eval(variable_name)


# Example usage
if __name__ == "__main__":
    # Define the knowledge base with some rules
    kb = [
        "x > 10 then y = 20",
        "x <= 10 and y == True then z = False"
    ]
    
    # Initial state of variables
    initial_state = {"x": 5, "y": None, "z": True}
    
    reasoning_engine = ReasoningEngine(knowledge_base=kb, initial_state=initial_state)
    print("Initial State:", reasoning_engine.state)

    # Update the state based on rules in knowledge base
    reasoning_engine.update_state()
    print("Updated State:", reasoning_engine.state)
```